ATQ, Initially, Quantity of milk in the mixture = 120 × (3/10) = 36 litres Quantity of water in the mixture = 120 × (7/10) = 84 litres Quantity of milk taken out = 40 × (3/10) = 12 litres Quantity of water taken out = 40 - 12 = 28 litres After removal and addition, Quantity of milk = 36 - 12 + 25 = 49 litres Quantity of water = 84 - 28 = 56 litres Ratio of quantity of milk to that of water = 49:56 = 7:8
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